8 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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or air-filled lesions ... basis of HRCT findings ... #Diagnosis #Radiology ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... with ground glass attenuation ... #Clinical #Radiology ... #Differential #Comparison ... #Table #RadiologyAssistant
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan, indicating air ... on the imaging findigs ... alone, alveolar ... #Clinical #Radiology ... HypersensitivityPneumonitis #Fibrosis #RadiologyAssistant
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
edema: incidental finding ... Alveolar proteinosis ... : ground glass attenuation ... #Clinical #Radiology ... #Table #RadiologyAssistant
Congestive heart failure (CHF) is the result of insufficient output because of cardiac failure, high resistance
finally into the alveoli ... dependent tissues and abdominal ... #Diagnosis #Radiology ... #Findings #Diagram ... #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
centrilobular emphysema. - Alveolar ... very similar HRCT findings ... #Radiology #CTChest ... #UIP #Comparison ... Fibrosis #Mimic #ILD #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
characterized by diffuse alveolar ... aswell as the HRCT findings ... suggestive of the diagnosis ... #Clinical #Radiology ... AcuteInterstitialPneumonia #ILD #RadiologyAssistant
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
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There are two diagnostic ... expiratory scans for air ... penicillamine) #Clinical #Radiology ... MosaicAttenuation #Mosaic #Attenuation ... #Comparison #RadiologyAssistant